Apollo ALSEP Subpackage 1

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The Apollo 17 ALSEP was packed on two subpallets similar to the ones shown here. It consisted of five experiments: a Heat Flow Experiment; an Ejecta and meteorites Experiment; a Seismic Profiling Experiment; an Atmospheric Composition Experiment; and a Surface Gravimeter. Energy for the ALSEP was provided by the nuclear-powered Radioisotope Thermoelectric Generator. The last experiment ceased working in December 1974.